Senior Systems Administrator Contact Information Dale Nielsen Avacoda, LLC 201 Suite 206 6 University Drive Amherst, MA 01002 Telephone: (413) 549-7679 Fax: (413) 549-3960 Email: dale@avacoda.com Web: http://www.avacoda.com Technical Skills Languages C, shell (sh and csh), perl, python, java, awk, GNU make, Pascal, FORTRAN, APL, Basic, 6502 assembly language. Operating Systems UNIX (Solaris, SunOS, Linux, HP-UX, Digital UNIX, BSD), Windows, VMS, RSX Server Applications Berkley Internet Name Daemon (BIND), Washington University ftpd, Apache web server, TomCat servlet, jboss, Postfix, Sendmail, smtpd, Dovecot IMAP, Courier IMAP, inn news server, OpenLDAP, OpenSSH, RADIUS, Samba, Tools cops, cvs, logcheck, sudo, watcher Network Services DHCP, DNS, FTP, HTTP, IMAP, NFS, NIS, NNTP, NTP, POP3, SMTP, SSH Recent Clients Blade Logic, Lexington, Massachusetts Channing Bete Company, South Deerfield, Massachusetts Computer Net Works, North Andover, Massachusetts Harvard University, Cambridge, Massachusetts Les Indiennes, Germantown, New York Nortel Networks, Billerica, Massachusetts Primus Mason Inter-Ethnic Alliance, Springfield, Massachusetts RadioVoodoo, Williamstown, Massachusetts Shentel, Edinburg, Virginia The Jackson Laboratory, Bar Harbor, Maine Whalley Computer, Southwick, Massachusetts Wigitek Corporation, Amherst, Massachusetts ZipLink Internet, Lowell, Massachusetts Recent Projects Data Center Operations Security and Systems Administration Internet Service Provider Systems Administration Bulk Electronic Mail Quota System Clustered Web Site Production and Development System Administration Community Internet Access Center Small Company Firewall and Mail Server Administration General Systems and Network Security Administration Software Development Environment Java JSP/EJB Based Web Portal Product Package Installation and Startup Project Summaries Project: Data Center Operations Security and Systems Administration Role: Senior Systems Administrator Monitored security of internal systems and performed audit of user accounts. Project: Internet Service Provider Systems AdministrationObtained, built, packaged, and installed open source security tools. Created and installed procedure to automatically monitor system status. Created and installed procedure to automatically check system security status. Set up Solaris jumpstart server and customized the jumpstart procedure. Set up anonymous ftp server. Set up build environment for open source tools. Acted as mentor for the systems administration group. Role: Systems Administrator Completed implementation of ISPman internet service provider management software proving administrative access to RADIUS, HTTP, IMAP, and FTP services using a common LDAP server. Upgraded OpenLDAP server software Installed Postfix SMTP server with TLS support to provide authenticated email relay services for dialup customers. Customized POP before SMTP functionality for providing email relay services for dialup customers. Project: Bulk Electronic Mail Quota System Role: Software Developer Researched methods and techniques used by senders of unsolicited bulk email and existing mechanisms available for controlling them. Designed and implemented system for maintaining a database containing RADIUS accounting information in order to identify dialup users by IP address in real time. Designed and implemented system for creating and enforcing email message quotas for outgoing messages using sendmail. Created initial prototypes as C programs using the MySQL database running on Linux. Implemented production version as C programs using the Oracle database running on Solaris. Project: Clustered Web Site Production and Development System Administration Role: Systems Administrator Administered, maintained, reconfigured Linux Virtual Server software that provides load balancing service for Apache web servers running on multiple Linux servers. Installed and configured courier-imap SSL enabled IMAP server to provide secure mailbox access. Installed and configured mon and logcheck software packages for continuous monitoring of the server cluster and network operation. Administered and maintained postfix based mail server. Set up ipchains based firewall protection for servers for development network as well as servers in the co-location facility. Project: Community Internet Access Center Role: Senior Systems Administrator Set up OpenBSD based server to provide DNS , DHCP, NIS, NTP, FTP, and Windows and Roaming Profile services using Samba. Created procedure to install Windows98 on donated Pentium based machines lacking CD-ROM drives. Set up OpenBSD based firewall connected to a DSL line to provide secure access from the Internet for remote administration and technical support. Wrote extensive articles documenting the use and administration of the entire Community Technology Information Center. Project: Small Company Firewall and Mail Server Administration Role: Senior Systems Administrator Designed, maintained and monitored Linux based internet firewall machine which provides email, web , ftp, telnet , and secure shell services used by distributed development group. Project: General Systems and Network Security AdministrationRole: Senior Systems Administrator Installed and maintained HP-UX and Digital UNIX operating systems on machines supporting the development of software product. Provided general support the UNIX systems the Research and Development, Quality Management, and Customer Support groups. Provided support for PVCS, the product used for revision control and configuration management. Project: Java JSP/EJB Based Web Portal Role: Senior Systems Administrator Installed and configured firewall/gateway machines running OpenBSD that make up a distributed network. Project: Product Package Installation and StartupBuilt, installed, and configured Linux workstations for developers and client web/database server. Installed and configured OpenSSH and the CVS version control system for development environment. Installed and configured the Oracle database server, the Apache web server, TomCat java servlet engine, and jBoss in support of a web portal development project. Role: Software Developer Designed and implemented the installation/upgrade/update procedure for the UNIX server component of Sybase based software product. Redesigned and rewrote startup procedure for database servers. Designed and implemented the procedure for packaging the product's release system. Publications Slamming Spam: A Guide for System Administrators by Robert Haskins and Dale Nielsen Addison Wesley Publishing Company December 2004 Upgrading Linux over the Internet by Dale Nielsen and Daniel Dee Linux Journal May 1999 Education University of Massachusetts at Amherst, Amherst, Massachusetts Bachelor of Science, cum laude Major: Computer Science, Minor: Mathematics |
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